$ git clone -n https://src.fedoraproject.org/rpms/libxml2.git /var/lib/mock/f33-build-342685-58915/root/chroot_tmpdir/scmroot/libxml2
Cloning into '/var/lib/mock/f33-build-342685-58915/root/chroot_tmpdir/scmroot/libxml2'...
$ git reset --hard 36ce67f6dcbbc1ac6fca872b99dab9675813c10d
HEAD is now at 36ce67f Add correct fix for CVE-2020-24977 (RHBZ#1877788), thanks: Jan de Groot.